- 45+
- Years practicing
- 1
- Bar admission
Practices in
Are you William Joseph O'Brien?
This profile was built from public bar records and is still unclaimed. Claim it free to control your photo, bio, and fees — and get client inquiries sent straight to you.
Quick answer
William Joseph O'Brien is a partner based in Newport Beach, CA. The practice focuses on IP, Litigation, and Real Estate. William has over 45 years of legal experience. Currently practicing at One Llp.
- Based in
- Newport Beach, CA
- Experience
- over 45 years
- Known for
- IP · Litigation · Real Estate
- Handles IP, Litigation, and Real Estate matters from Newport Beach, CA.
- Over 45 years of practice as a licensed attorney.
About William Joseph O'Brien: William Joseph O'Brien is a partner based in Newport Beach, CA. The practice focuses on IP, Litigation, and Real Estate. William has over 45 years of legal experience. Currently practicing at One Llp.
Areas of practice
Practice focus
William Joseph O'Brien represents clients in Newport Beach, California across the following areas of law. Each area links to other verified attorneys with the same focus.
Biography
About William Joseph O'Brien
William Joseph O'Brien is a lawyer practicing litigation, intellectual property law. William received a A.B. degree from University of California, Davis in 1978, and has been licensed for 45 years. William practices at One LLP in Newport Beach, CA.
Credentials
Education
University of California, Boalt Hall School of Law
J.D. · 1981
University of California, Davis
A.B. · 1978
Jurisdictions
Bar admissions
California
1981 · ACTIVE
Affiliations
Professional memberships
Century City, Santa Monica and American Bar Associations State Bar of California Association of Business Trial Lawyers
membership
Locations
Office locations
Client feedback
Client reviews
No reviews yet
Only verified clients who have consulted with William Joseph O'Brien can leave a review.
Schedule your consultationFrequently asked
Common questions
What areas of law does William Joseph O'Brien practice?
William Joseph O'Brien focuses on IP, Litigation, and Real Estate.
Where is William Joseph O'Brien located?
William Joseph O'Brien primarily serves clients in Newport Beach, California, with an office at 23 Corporate Plaza, Suite 150.
How experienced is William Joseph O'Brien?
William Joseph O'Brien has 45 years of legal practice, having been licensed since 1981.
Is William Joseph O'Brien a verified attorney?
William Joseph O'Brien's profile is listed but has not yet been claimed by the attorney. Verification status is pending.
How can I schedule a consultation with William Joseph O'Brien?
You can book a consultation through LawyersListed directly from this page. Initial outreach can also be made by phone at 949-728-6078.
More counsel
Other top-rated ip attorneys in California
Douglas MacMillan Borthwick
Santa Ana, California
5.0· 118

David Payab, Esq.
Woodland Hills, California
5.0· 108

Arsen Sarapinian, Esq.
Beverly Hills, California
5.0· 100

Jeffrey Robert Loew
San Mateo, California
5.0· 47

Steven A. Kronenberg
San Francisco, California
5.0· 43

Michael Brett Abramson
San Diego, California
5.0· 39